Stock code
300440
300440
028-8283 9999
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Company AnnouncementStock Information
中文
If you have an investor relations question, you can contact us in one of the following ways
Yunda Technology official account
Yunda Technology Service official account
028-8283 9999（contact number）
028-8283 9998（Quality Complaints）
028-8289 1080（24-hour service hotline）